432978943 has 2 divisors, whose sum is σ = 432978944. Its totient is φ = 432978942.

The previous prime is 432978929. The next prime is 432978989. The reversal of 432978943 is 349879234.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432978943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432978043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216489471 + 216489472.

It is an arithmetic number, because the mean of its divisors is an integer number (216489472).

Almost surely, 2^432978943 is an apocalyptic number.

432978943 is a deficient number, since it is larger than the sum of its proper divisors (1).

432978943 is an equidigital number, since it uses as much as digits as its factorization.

432978943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The square root of 432978943 is about 20808.1460731128. The cubic root of 432978943 is about 756.5232134613.

The spelling of 432978943 in words is "four hundred thirty-two million, nine hundred seventy-eight thousand, nine hundred forty-three".